FED-STD-H28/2A (NOTICE-1), FEDERAL STANDARD: Screw-Thread Standards for Federal Services Section 2 Unified Inch Screw Threads- UN and UNR Thread Forms (27-SEP-2001)

FED-STD-H28/2A (NOTICE-1), FEDERAL STANDARD: Screw-Thread Standards for Federal Services Section 2 Unified Inch Screw Threads- UN and UNR Thread Forms (27-SEP-2001)., FED-STD-H28/2B, dated 20 August 1991, has been reviewed and determined to be valid for use in acquisition.